Composite converting furnace for producing medium and low carbon ferromanganese

Abstract

The utility model relates to the technical field of metal smelting, and discloses a composite converting furnace for producing medium and low carbon ferromanganese, which comprises a converter body and a bracket connected to the converter body, and realizes effective scraping of slag around a converter mouth through mutual matching of a motor, a rotating shaft, a cutter head and a cutting knife, so as to promote the slag to be smoothly separated from the outer wall of the converter. Damage of high-temperature slag to high-temperature-resistant materials of the furnace body can be effectively relieved, the structure is simple, operation is convenient, and practicability is high; through mutual cooperation of an inserting groove, an annular inserting groove, an inserting plate and a sliding frame, a cutting knife can be conveniently disassembled on the knife disc and maintained, meanwhile, friction force is effectively enhanced through convex point structures designed on the surfaces of the sliding groove and the sliding frame, and the cutting knife installation stability is further ensured through cooperation with the effect of a limiting screw rod; and double locking is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of metal smelting, in particular to a production low carbon ferromanganese composite blowing converter. BACKGROUND

[0002] At present, oxygen top blowing and side blowing converters are widely used in metal smelting, especially in the production of low carbon ferromanganese. In this process, high-carbon ferromanganese melt is used as a reducing agent, and oxygen is used as an oxidizing agent. During blowing, carbon is removed by oxygen impact. Manganese ore and lime are added to cool and form slag. After blowing, silicon-manganese alloy is added to reduce manganese oxide in the slag to produce low-carbon ferromanganese. For the cleaning of converter mouth slag, physical and mechanical removal has significant advantages in efficiency, cost, and safety, and is superior to chemical or thermal methods.

[0003] The patent with the current publication number CN218627692U discloses a converter, which includes a box body, two support frames fixedly connected to the top of the box body, a converter body arranged between the two support frames, a motor fixedly connected to the rear end of the inner cavity of the box body, a cam fixedly connected to the output end of the motor, two sleeves fixedly connected to the top of the inner cavity of the box body, a spring fixedly connected to the top of the inner cavity of the sleeve, a connecting column fixedly connected to the bottom of the spring, and the connecting column penetrating through the inner cavity of the sleeve and extending to the outside of the sleeve.

[0004] The above device still has the following defects: During the smelting operation, the high-temperature environment inside the device can cause slag to frequently splash onto the surrounding of the furnace mouth and tightly adhere thereto. If these slags are not removed in time, their high-temperature characteristics will cause serious erosion to the high-temperature-resistant materials, thereby frequently causing maintenance needs and greatly increasing operating costs. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a production low carbon ferromanganese composite blowing converter, which facilitates the scraping of slag near the furnace mouth away from the outer wall.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a production low carbon ferromanganese composite blowing converter, which includes a converter body and a support connected to the converter body, a cylinder push rod is installed on the support, an L-shaped support is fixedly connected to the top end of the cylinder push rod, an electric motor is installed at the top end of the L-shaped support, a rotating shaft is connected to the output end of the electric motor through a shaft coupling, a cutter head is installed at the output end of the rotating shaft, and a plurality of cutting knives are inserted into the cutter head.

[0007] Further, the cutter disc is provided with a slot, the cutting knife is inserted into the cutter disc through the slot, an annular slot is formed in the upper end of the cutter disc and penetrates into the slot, the annular slot also penetrates into the cutting knife, an annular plug is slidably connected in the annular slot, a sliding groove is formed in the rotating shaft, a sliding frame is slidably connected in the sliding groove, and the sliding frame is fixed to the top end of the annular plug.

[0008] Further, the surfaces of the slot, the annular slot, the annular plug, the sliding groove and the sliding frame are provided with convex points.

[0009] Further, the cutting knife is provided with a connecting frame, and a slag receiving vessel is mounted at the end of the connecting frame.

[0010] Further, the connecting frame and the slag receiving vessel are detachably connected.

[0011] Further, a guide plate is fixed to the bracket, a guide groove is formed in the guide plate, and the end of the L-shaped bracket is slidably connected in the guide groove.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model discloses a motor, a rotating shaft, a cutter disc and a cutting knife are cooperated, the effective scraping of the slag around the furnace mouth is realized, the slag is separated from the outer wall of the converter, the damage of the high-temperature slag to the high-temperature resistant material of the furnace body is effectively reduced, the structure is simple, convenient to operate and practical.

[0014] 2. The utility model discloses a slot, an annular slot, a plug and a sliding frame are cooperated, the cutting knife can be conveniently disassembled on the cutter disc, the cutting knife is maintained, the convex point structure of the sliding groove and the sliding frame surface is used, the friction is effectively enhanced, the cutting knife is further ensured to be stable in installation in cooperation with the action of the limiting screw, and double anti-loosening is achieved. 3. The utility model discloses a slag receiving vessel and a cutting knife are cooperated, when the slag is effectively scraped off the furnace wall, falls into the slag receiving vessel and is properly collected, is convenient for subsequent recycling, and realizes the recycling of resources. DRAWINGS

[0015] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0016] Figure 2 It is a cutter disc and a slag receiving vessel sectional structure schematic view of the utility model;

[0017] Figure 3 It is a slot and annular slot partial sectional structure schematic view of the utility model; Figure 4This is a three-dimensional structural diagram of the cutting blade of this utility model in contact with the furnace opening of the converter body.

[0018] In the diagram: 1. Converter body; 2. Support; 3. Guide plate; 4. Guide groove; 5. Cylinder push rod; 6. L-shaped support; 7. Motor; 8. Rotating shaft; 9. Cutter head; 10. Cutting blade; 11. Connecting frame; 12. Slag receiving dish; 13. Slot; 14. Annular slot; 15. Annular insert plate; 16. Slide groove; 17. Slide frame; 18. Limiting screw. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] like Figures 1 to 4 As shown, a low-carbon manganese-ferromanganese composite blowing furnace includes a converter body 1 and a support 2 connected to the converter body 1. A cylinder push rod 5 is installed on the support 2. An L-shaped support 6 is fixed to the top of the cylinder push rod 5. A motor 7 is installed at the top of the L-shaped support 6. The output end of the motor 7 is connected to a rotating shaft 8 through a coupling. A cutter head 9 is installed at the output end of the rotating shaft 8. Multiple cutting blades 10 are inserted into the cutter head 9.

[0021] like Figure 1 As shown, the low-carbon ferromanganese composite blowing furnace in this invention is similar in structure to existing converters, such as the converter disclosed in patent publication number CN218627692U. The main improvement of this invention is that it facilitates scraping the slag near the furnace opening from the outer wall. Figures 1 to 4 As shown, in the production process of the low-carbon ferromanganese composite blowing furnace of this utility model, the L-shaped support 6 is smoothly moved down to the predetermined position by activating the cylinder push rod 5, thereby making the cutting blade 10 closely fit against the outer wall of the furnace opening of the converter body 1. Subsequently, the motor 7 is started, and the cutting disc 9 and the cutting blade 10 are driven to rotate synchronously through the rotating shaft 8. During this process, the cutting blade 10 effectively removes the slag attached to the outer wall of the furnace opening by scraping, ensuring that the slag does not remain and adhere to the furnace wall, thereby maintaining the performance and effect of the high-temperature resistant material on the converter body 1. It is worth noting that the cylinder push rod 5 and the motor 7 are existing technologies, so they will not be described in detail here. The rotating shaft 8 and the cutting disc 9 are detachably connected, which facilitates maintenance and inspection.

[0022] like Figure 2 and Figure 3As shown, the cutter head 9 is provided with a slot 13, the cutting knife 10 is inserted into the slot 13, the upper end of the cutter head 9 is provided with an annular slot 14 which penetrates into the slot 13 and the cutting knife 10, the annular slot 14 is slidably connected with an annular plug 15, the rotating shaft 8 is provided with a sliding groove 16, the sliding groove 16 is slidably connected with a sliding frame 17, the top end of the annular plug 15 is fixedly connected with the sliding frame 17, the rotating shaft 8 is provided with a limiting screw 18 which penetrates into the sliding groove 16 and the sliding frame 17.

[0023] Specifically, when the device needs to remove the cutting knife 10 after completing all the work, the limiting screw 18 is first screwed out to release the limit, and then the sliding frame 17 is pushed up to drive the annular plug 15 to leave the annular slot 14, at this time, all the cutting knives 10 have been unlocked, and then the cutting knives 10 can be taken out in sequence, when the cutting knives 10 need to be installed, the sliding frame 17 is first lifted up, and then the cutting knives 10 are inserted into the slot 13 in sequence, after all the cutting knives 10 are inserted, the annular plug 15 and the sliding frame 17 are pressed down to restore their original positions and are clamped into the annular slot 14, and the limiting screw 18 is tightened; in addition, the end of the limiting screw 18 is provided with a butterfly nut, so that the operator can manually tighten or loosen without tools; at the same time, after the cutting knife 10 is inserted into the slot 13, since the annular slot 14 penetrates into the cutting knife 10 and the annular slot 14, the cutting knife 10 will not move left and right after the sliding frame 17 is inserted, and the limiting screw 18 limits the upward and downward movement of the sliding frame 17 and the annular slot 14 by being screwed onto the rotating shaft 8 and the sliding frame 17, and the other end of the limiting screw 18 is fixed by the butterfly nut to prevent the cutting knife 10 from moving upward and downward, so that the cutting knife 10 can be conveniently disassembled and installed and its work is stable; it is worth noting that when the sliding frame 17 is clamped into the annular slot 14, the cutting knife 10 is in a locked state, the limiting screw 18 penetrates into the sliding groove 16 and the sliding frame 17 in this state, and the end of the limiting screw 18 is fixed by the butterfly nut to lock the sliding frame 17 and prevent it from moving upward and downward to affect the work of the cutting knife 10.

[0024] As shown in Figure 2 and Figure 3 , the surfaces of the slot 13, the annular slot 14, the annular plug 15, the sliding groove 16 and the sliding frame 17 are provided with convex points to increase the friction and prevent these parts from shaking during the work of the device, so that the cutting knife 10 is not easy to shake and works more stably.

[0025] As shown in Figure 1 , Figure 2 and Figure 4 , the cutting knife 10 is fixedly connected with a connecting frame 11, and the end of the connecting frame 11 is provided with a slag receiving vessel 12.

[0026] Specifically, in the operation process, when the device is used to scrape the slag around the mouth of the converter body 1, the scraped slag is effectively introduced into the slag receiving basin 12 for collection for subsequent recycling.

[0027] As shown in Figure 1 , Figure 2 and Figure 4 , the connecting frame 11 is detachably connected with the slag receiving basin 12, the lower end of the connecting frame 11 abuts against the inner wall of the slag receiving basin 12, and the outer side of the slag receiving basin 12 is threadedly connected with a fastening bolt, and the detachable connection of the connecting frame 11 and the slag receiving basin 12 is realized by the fastening bolt, which facilitates the installation, disassembly and maintenance of the slag receiving basin 12, and the slag receiving basin 12 does not hinder the disassembly operation of the cutting knife 10, and since the fastening bolt is a common fastening structure, detailed description is not given here.

[0028] As shown in Figure 1 and Figure 2 , the bracket 2 is fixedly connected with a guide plate 3, the guide plate 3 is provided with a guide groove 4, and the end of the L-shaped bracket 6 is slidingly connected in the guide groove 4. Specifically, before the device is prepared to scrape the slag, the L-shaped bracket 6 is driven by the air cylinder push rod 5 to move up and down, thereby driving the cutting knife 10 to move accurately to the predetermined position, and in this process, the guide groove 4 in the guide plate 3 provides additional support and guide function, ensuring the stability of the movement process and preventing any possible shaking or deviation; it is worth noting that when the air cylinder push rod 5 is stretched to its limit position, the cutting knife 10 will be in a safe position away from the mouth of the converter body 1, on the contrary, when the air cylinder push rod 5 is completely retracted, the cutting knife 10 is closely attached to the outer wall of the mouth of the converter body 1, but at this time, the cutter head 9 and the mouth still maintain a certain safety distance.

[0029] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement for part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A medium-low carbon ferromanganese production combined blowing converter, comprising a converter body (1) and a support (2) connected to the converter body (1), characterized in that, The support (2) is provided with a cylinder push rod (5), the top end of the cylinder push rod (5) is fixedly connected with an L-shaped support (6), the top end of the L-shaped support (6) is provided with a motor (7), the output end of the motor (7) is connected with a rotating shaft (8) through a shaft coupling, the output end of the rotating shaft (8) is provided with a cutter head (9), and a plurality of cutting knives (10) are inserted into the cutter head (9).

2. A combined blowing furnace for producing medium-low carbon ferromanganese according to claim 1, characterized in that, The cutter head (9) is provided with an insertion slot (13), the cutting knives (10) are inserted into the cutter head (9) through the insertion slot (13), the upper end of the cutter head (9) is provided with an annular insertion slot (14) penetrating into the insertion slot (13), the annular insertion slot (14) also penetrates into the cutting knives (10), the annular insertion slot (14) is slidably connected with an annular insertion plate (15), the rotating shaft (8) is provided with a sliding groove (16), the sliding groove (16) is slidably connected with a sliding frame (17), the top end of the annular insertion plate (15) is fixedly connected with the sliding frame (17), and the rotating shaft (8) is provided with a limiting screw rod (18) penetrating through the sliding groove (16) and the sliding frame (17).

3. A combined blowing furnace for producing medium-low carbon ferromanganese according to claim 2, characterized in that, The surfaces of the insertion slot (13), the annular insertion slot (14), the annular insertion plate (15), the sliding groove (16) and the sliding frame (17) are provided with convex points.

4. A combined blowing furnace for the production of medium and low carbon ferromanganese according to claim 1, 2 or 3, characterized in that, The cutting knives (10) are fixedly connected with a connecting frame (11), and the outer wall of the connecting frame (11) is provided with a slag receiving vessel (12).

5. A combined blowing furnace for producing medium-low carbon ferromanganese according to claim 4, characterized in that, The connecting frame (11) and the slag receiving vessel (12) are detachably connected.

6. A combined blowing furnace for producing medium-low carbon ferromanganese according to claim 1, 2, 3 or 5, characterized in that, The support (2) is fixedly connected with a guide plate (3), the guide plate (3) is provided with a guide groove (4), and the tail end of the L-shaped support (6) is slidably connected in the guide groove (4).

7. A combined blowing furnace for producing medium-low carbon ferromanganese according to claim 4, characterized in that, The support (2) is fixedly connected with a guide plate (3), the guide plate (3) is provided with a guide groove (4), and the tail end of the L-shaped support (6) is slidably connected in the guide groove (4).

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